Spatial assessment of the bioenergy potential of forest residues in the western province of Spain, Caceres

Rodríguez, Fernando López; Atanet, C. Pérez; Blázquez, Francisco Cuadros; Celma, Antonio Ruiz

doi:10.1016/j.biombioe.2009.05.026

Cited by 53 publications

(41 citation statements)

References 7 publications

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“…New biomass models fitted in this study for hardwood species improved the previous ones developed by Montero et al (2005) (Table 3), providing more consistent and precise models to estimate biomass and carbon stocks in Spanish forests, to use in nutrient cycling studies (Montero et al, 1999;Blanco et al, 2006), forest planning for bio-energy purposes (López-Rodríguez et al, 2009) or forest management to maximize the carbon sink capacity of forests Cañellas et al, 2008).…”

Section: Discussionmentioning

confidence: 61%

Biomass models to estimate carbon stocks for hardwood tree species

2012

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To estimate forest carbon pools from forest inventories it is necessary to have biomass models or biomass expansion factors. In this study, tree biomass models were developed for the main hardwood forest species in Spain: Alnus glutinosa, Castanea sativa, Ceratonia siliqua, Eucalyptus globulus, Fagus sylvatica, Fraxinus angustifolia, Olea europaea var. sylvestris, Populus x euramericana, Quercus canariensis, Quercus faginea, Quercus ilex, Quercus pyrenaica and Quercus suber. Different tree biomass components were considered: stem with bark, branches of different sizes, above and belowground biomass. For each species, a system of equations was fitted using seemingly unrelated regression, fulfilling the additivity property between biomass components. Diameter and total height were explored as independent variables. All models included tree diameter whereas for the majority of species, total height was only considered in the stem biomass models and in some of the branch models. The comparison of the new biomass models with previous models fitted separately for each tree component indicated an improvement in the accuracy of the models. A mean reduction of 20% in the root mean square error and a mean increase in the model efficiency of 7% in comparison with recently published models. So, the fitted models allow estimating more accurately the biomass stock in hardwood species from the Spanish National Forest Inventory data.Key words: aboveground biomass; belowground biomass; additivity; carbon sequestration; hardwood species; biomass models. ResumenEcuaciones para la estimación de biomasa de frondosas en España Para realizar estimaciones de cantidades de carbono acumulado por los bosques, a partir de datos procedentes de inventarios forestales, es necesario disponer de modelos de estimación de biomasa o de factores de expansión. En este trabajo se han ajustado modelos de estimación de biomasa para las principales especies forestales de frondosas existentes en los bosques españoles: Alnus glutinosa, Castanea sativa, Ceratonia siliqua, Eucalyptus globulus, Fagus sylvatica, Fraxinus angustifolia, Olea europea var. sylvestris, Populus x euramericana, Quercus canariensis, Quercus faginea, Quercus ilex, Quercus pyrenaica y Quercus suber. Se han determinado las siguientes fracciones: fuste con corteza, ramas de diferentes tamaños, parte aérea y parte radical. Para cada especie se ajustó un sistema de ecuaciones utilizando la metodología de mínimos cuadrados generalizados conjuntos, que contempla el cumplimiento de la propiedad aditiva entre fracciones. Como variables independientes se utilizaron el diámetro y la altura total del árbol. El diámetro aparece en todos los modelos, no así la altura, si bien su inclusión resulta en una mejora de las estimaciones en los modelos de biomasa de fuste para la mayoría de las especies y en parte de los modelos de ramas. La comparación con otros modelos desarrollados anteriormente para estas especies y ajustados con otra metodología, indica una mejora en la precisión de los aquí p...

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Section: Discussionmentioning

confidence: 61%

Biomass models to estimate carbon stocks for hardwood tree species

2012

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“…In general, biofuels can be carbon neutral, carbon negative, or carbon sources, depending on how much CO 2 (and other greenhouse gases) is removed from or released into the atmosphere during crop growth and biofuel production (Tilman et al 2006). For biomass to be considered as a CO 2 neutral energy resource it is assumed that CO 2 produced is absorbed by growing plants in a relatively short cycle (López-Rodríguez et al 2009;Voivontas et al 2001;Moghtaderi et al 2006).…”

Section: Estimation For Comparison Of Renewable Biomass Fuels With Fomentioning

confidence: 99%

Brazilian Lignocellulosic Wastes for Bioenergy Production: Characterization and Comparison with Fossil Fuels

et al. 2013

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The aim of this paper was to analyze energy-related properties of forestry and agricultural wastes for energy production purposes, and to compare them with fossil fuels. The forestry wastes used were red cedar, Eucalyptus, and Pinus wood shavings. The agricultural wastes analyzed were rice husk, coffee wastes, sugar cane bagasse, maize harvesting wastes, and bamboo cellulose pulp. The forestry wastes presented more suitable properties for bioenergy production than the agricultural wastes. Desirable energetic properties were found for coffee wastes. The opposite was verified for rice husks. Among the biomass studied, coffee wastes presented the highest equivalent in fossil fuel volume and hence may lead to the highest decrease in CO 2 emissions by fossil fuels used in Brazil for steam and heat production. The results suggests that CO 2 benefits can be obtained if bioenergy is generated in the same locale where biomass is produced, avoiding CO 2 cost of logistics and leading to greater end-use efficiency. The present work promotes the widespread use of different lignocellulosic wastes for bioenergy production and gives useful information for the planning and the control of power plants using biomass.

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“…A grande vantagem da utilização da biomassa vegetal como fonte de energia consiste nas emissões neutras de dióxido de carbono. O CO 2 produzido a partir da queima da biomassa (oxidação) é absorvido pelas plantas, por meio do processo fotossintético, que crescem em um ciclo relativamente curto (LÓPEZ-RODRÍGUEZ et al, 2009;MOGHTADERI et al, 2006;VOIVONTAS et al, 2001).…”

Section: Introductionunclassified

Avaliação da qualidade da madeira de Coffea arabica L. como fonte de bioenergia

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Protásio

Rosado

et al. 2014

CERNE

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EVALUATION OF Coffea arabica L. WOOD QUALITY AS A SOURCE OF BIOENERGYABSTRACT: This work aimed to evaluate, through principal component analysis, the quality of Coffea arabica L. wood obtained from different growth systems and varieties as a source of bioenergy. Wood from three different growth systems (natural, conventional and organic) and two different varieties (Mundo Novo and Catuaí) were used, totalizing six treatments. The contents of elementary components (C, H, N, S and O), ash, lignin, total extractives and holocellulose, basic density, the higher heating value, the lower heating value, as well as the lower and higher volumetric heating values of the analyzed woods were quantified. Principal components multivariate statistical analyses were conducted. The scores of the principal components of interest were determined as a way to divide the woods into groups. Group I was composed by the wood from the organic coffee "Mundo Novo" and natural "Mundo Novo"; Group II by the organic "Catuaí", and Group III by the wood from convencional "Mundo Novo", natural "Catuaí" and convencional "Catuaí". Wood residues from the species Coffea arabica L. showed great potential for energetic use, especially the woods from the conventional systems and the "Catuaí" Variety. Woods from Group III stood out, due to the high volumetric heating values , basic density, lignin content and higher heating value. However, the woods of this group showed high nitrogen content.

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Spatial assessment of the bioenergy potential of forest residues in the western province of Spain, Caceres

Cited by 53 publications

References 7 publications

Biomass models to estimate carbon stocks for hardwood tree species

Biomass models to estimate carbon stocks for hardwood tree species

Brazilian Lignocellulosic Wastes for Bioenergy Production: Characterization and Comparison with Fossil Fuels

Avaliação da qualidade da madeira de Coffea arabica L. como fonte de bioenergia

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